Home / 149,572.20-206,372.27-91,414.07

Finding the Fourth Proportional to 149,572.20, 206,372.27 and 91,414.07

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Solution

The fourth proportional to 149,572.20, 206,372.27 and 91,414.07 is: 126,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,572.20 : 206,372.27 = 91,414.07 : x
  2. Step 2: Convert to fraction form
    149,572.20/206,372.27 = 91,414.07/x
  3. Step 3: Cross multiply
    149,572.20x = 206,372.27 × 91,414.07
  4. Step 4: Simplify right side
    149,572.20x = 18,865,327,646.91
  5. Step 5: Solve for x
    x = 18,865,327,646.91/149,572.20
  6. Step 6: Final answer
    x = 126,128.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.